Automatic train signaling, braking, and throttle cut-off.



JIA. DEMERS.

AUTOMATIC TRAIN SIGNALING, BRAKING, AND THROTTLE CUT-OFF.

APPLICATON FILED SEPT-15 T913- 1,l49,251 Patented Aug. 10, 1915.

r 5 SHEETS-SHEET 1- W .l 0 y M H m 4 W w J 9N 4 A l I I I T l a; o lllllllllllllll H a Witnesses:

Attorneys COLUMBIA PLANDCIRAPH CO. ,\VASHINGTON, D. c.

J. A. DEMERS.

AUTOMATIC TRAIN SIGNALING, BRAKING, AND THROTTLE CUT-OFF.

APPLICATION FILED SEPT. 15, 1913.

1,149,251 Patented Aug. 10, 1915.

5 SHEETS-SHEET 2.

Witnesses: ventol Attorneys .I. A. DEMERS.

I AUTOMATIC TRAIN SIGNALING, BRAKING, AND THROTTLE CUT-OFF. 1,149,251.

APPLICATION FILED SEPT. 15, I913.

Patented Aug. 10, 1915.

5 SHEETSSI'IEET 3.

JOSEPH ALP/M4155 fifMfi- Inventor Witnesses:

COLUMBIA PLANOURAPH cm. WASHINGTON, n. c.

J; A. DEMERS. A

AUTOMATIC TRAIN SIGNALING, BRAKING, AND THROTTLE CUT-OFF.

A Rm 1 9 1 O mu A d m m m P am 5 SHEETS-SHEET 4.

H. Inventor v Witnesses: 44.

Attorneys COLUMBIA PLANOGRAPH co., WASHINGTON, D. c.

I 1. A. DEMERS. AUTOMATIC TRAIN SIGNALING, BRAKING, A ND THROTTLE CUT-OFF.

APPLICATION FILED SEPT. I5, I913.

Patented Aug. 10, 1915.

191499251 5 SHEETS-SHEET 5 y Fig-16'.

Witnesses: I

Ammcya J0 9EPHAAPH0N6 DEMERS, lnventm COLUMBIA PLANDaRAPH C0.,WASBINUTON, D. c.

v po nts.

' mien JOSEPH ALPHONSE nnivznas, or STnROMUALQ-QUEBEC, CANADA.

T0 aZZfw/wm it mag concern fI/P 1 Be it known that I, J osnPHf ALPHONSE DEMERsa subject of the Kingoffirreat Britain, residing at St. Romuald, Province of Quebec, Canada, have invented certain new and ,useful Improvements inf Automatic Train Signaling, Braking, and"-Throttle Cut-"Oil's; following" is a full, clear, and exact descfrip tionof the invention, such as will enable others skilledyi'n the art towhichit tains to make and use the same." I I The invention to 'beflhereinai ter described relates to railways, a dmm-e particularly to automatic mechanisn'is' torsignaiingand applying the *brakes at predetermined Broadly speaking, fthe -invention com-- prises means for I signaling the "engineer when the train reaches a predetermined point, means for applying the brakes, and means whereby the engineer can prevent the application of the brakes if he so desires In orderto more clearly disclose the construction, operation, and useof'thejinvene 'tion, reference should be had to the accoinpanying drawings forming part of the pres ent ap 'ilication. f 1

v Throughout the several figures TOT. the,

haracters designate drawings like reference the same'parts. I I

In the drawingsgFigure 1 is a vertical sectionalview through the casingshowing the operating mechanism ,inelevation; with the brakes applied; Fig. 2 is a View of Fig;

1 taken from the right sidef,'-with theside offth'e casi'ng'removed; I taken on linef3-3 of Fig. l, looking inthey' direction of the arrows; Fig. 4- is" a section taken on line l'l of Fig. 3, looking in the direction of the arrows; Fig. 5 is a side ele vation of the device for operatingthe sig nal actuating lever; Fig.6 is aside View of an engine and tender showing thedevice suspendedfrom the tender and how it is operated; Fig. 7 is a rear view of alocomotire cab with: the device applied; Fig; 8 is an end 7 View of the device for operating the brake actuating'leizer; Fig. .9 is a sideelevation of the same; Fig. 10 is an enlarged detail view showing the means for-"operating the throttle lever; F 11 is a detail View of the connections'Withthe throttle lever; Fig;

12 is a detail'view of a modification of Fig;

11; Fig. 13 is an [end viewkofthecasing,

showing the shields, applied; Fig. -14 is a s ec fication of Letters Patent. 2 Application filed September 15, 1913.

and do hereby declarethat the appertenderboX. slidably mounted abar 2, provided With'an lntegral laterally projecting arm 2, which,

- track.

- Serial No. 789,771.

bottom plan 'VieW of the same. Fig. 15 is a sectional View on line 15-15 of Fig.1

looking in the direction :of the arrows; Fig.

16 1s a fragmentarydetail view'showingthe mounting of the plate for operating the For.)

Patented Aug-.10, 1915;

tail 1 View the brakes, and operating the throttle lever to cut came supplyof steam to the eyes;

I in front' elevation of the sliding i bolt audits tubular guide; and F ig. 181s a i ders, as the train is passing japredetermined point in the track, and to jaccomplish these operations entirely independentof the en} gineer or =any other person. f

The 'hole actuating 'rnechanism is con tained in a casing or box 1 which maybe 7 conveniently-I suspended from "straps of am I -W1thin this case projects through a slot in thesid'e of the box and travels at a short distance above the This bar is guided in a suitable-U- bracketor strap secured to the bottom of the casing. {The rearend of bar 2 isj iw otally connected to the'lowerend of alever I I .100 fulcrumed 'in].a bracket 101 and con:

nected atits upper endby a lii1k'l02 to a second @link 'l'03 thelowerend of which is pivotally mounted in a suitable" plate seciiredtothe bottom of the casing The u provided with a inS which projects over the upperedge of a loosely mountedU shaped bracket l so as per end of this second link is to control I and limit the motion thereof. Oneend of the secured to the lower end of a lever 5, 'pivotally mounted; at its center on a horizontal arm 5 secured to theside of the casingl, andthe bracket is provided at its outer end, omits lower edge, with an integr pro theside'of the casing 1. The upper endof level-5 is connected by a link Gtothe handle 7 *ofavalve, in' the'compressed air pipe 8. Abo've'this' valve {a branchpipe 9 is tapped into the pipe 8. The branchpi'pe -9 trave erses the case 1 and passes gout through "the topi thereof, at the back. In the inner Vertical portionrofthe branch pipe'9 is placed avalve 9 which isope'rated jecting at right angles thereto through guide, bracket 4 is fpivotally ai plate 14 g 1 1 1;, it? is evident that through aslotte'd'handle lO WhlCh is con- 1 cas ng and within the metal shield or cap.

1 'Wh'enf t e pla e 11 ndthe ol fl lia e in ai'raised position,

I W d T lowered position archedleafispringf13.

, '20. ,7 t I I I 'pmcgd 9f qp e ng trlps; comprising N Gill-catnip 5 adapted to engag t l ably mounted between tr s nd 4-,,u1e valve 19 nected by the usual pin to a rectangular carriedon the outer .end of plate ll'loosely a bolt 104: slidably .mounted the guide bracket eti-soasto term therewith a transverse lever and havingan oilset end playing through a slotin the, end wall of the:

the slot. Plate 11 is slid- 105 which icovers the end of the casing 1 and su tablebracketsecuned theretojffor guiding purposes.

as shown in solid lines is closed; as is alsothe valve in the compressedair pipe .8,

Thefinneriendlot the bolt-glOlis held illffi by an inwardly At a predetermined point in the'track is 2 iifi ll ql 2 and. avertical trip nor? mallyia p d .rli tel l secured-to V bracket The vertical trip l6;is secured V t e a th :rroi s the bottom edge of the 0 t the outer endofr'a shaft 17 mounted in two blocks 18 are mounted on cush- 'ion springs 1 9 carried inj the sides of a. ca's- 3O v I two'itension spr ngs 21' havlng the r outer ends secured .to the 'endsfiof the casing 'and ing 20. Contained withinthe casing 20 are i their inner ends securedtoan eye 22 1nte raljw t V tical trip lfi is treeto give either sidewise or vertically il too great pressure be'exerted 1P n 1 l Wherilthe train reaches a; point where a shaft li i Bythis means theverstprrhe trips are placed; thearm 2 of bar L, Qfor'cef'the pin forward and downward.

QfWill' first engagethe trip 15 which will Pin 3-wi ll engage and iforce the guide bracket 4:: downward; "also, to the position I shown in dotted lines in 104 ofthe i-guide brackets carries the plate ygf ci s. o n t e guide I bracket, the valve? 9 'will be opened and, the "compressed 1 air allowed to flow h u h t br ch pipe .9 is connected P pe, 9-v V. to a whistle 23 located in the cab of the engine; so that the engine er notified as soon as the engine reaches a set on trips,.,

of plate 1. L securedto guidebracket t will be engaged by. the verticaltrip 16. :The

' vertical triplti will f orce the bolt 104: backa d tq ei s i n h w ilk-F g h will force the lower. ma or the pivotally mounted lever 5 i bac kward, thus-revolving I it on its pivot so asto swing its upper end valve dowiliwardya'ndforward, and thus open the i i in the compressed air pipe 8, which is connected to the brakes {and in this way any. the i r k s r e t fy n thee/Heir purpose.

Fig 3. As the bolt 7 The branch 7 In the position shown in dotted lines in 3; theproject1ng end 55 isv clear and does not want .the train stopped, he canprevent the 'brakes'from being applied by special means provided for that A small cylinderQkprovided with the usual piston; head and piston rod 25 whichf-projects through the top of cc'ase l, is secured to one j. end thereon Mounted on the upper end or thepistonrod 25is1a yokecomposed of "3 11 L-memben-QQaIid an .e1'm2 The lower end "of the g L member '26 is secure'djhymeans of a chain- 23 to the guidehrzmket 4, ata point nearthe free end thereof. {the outer end of-arm 27 is connectedto the upper end of a tensionspring 29 the lo'wer en'dof whichissecured to the Qneer. lf'the engineer knows the track bottom'of case lbyan'; anchorrscrew A V pipe 31 is connectedto the lower end of'the tank 32. lnterposed inthe pipe 31 between ,theycylinder 2% and tank 32 is a th'reeiway valve 33 normallyclosed; placed within cylinder, Q L and connected, to any suitable. source of, compressed air supply; asfthe easy reach of the engineer. As soonas the engineer hears the signal, he'can open the valve 33530 as to permit the compressed air to enter pipe 131, and thus enter the (33 1- inder 2st from the bottom, soasto force the piston rod 25 upward. This operation lifts thev guide bracket & and its boltilO-l fronrthe position shown in dotted lines in 1 Fig; 3, to the position shown in solid lines,

in the cylinder Zal'to be forced upward, the cylinder is provided with a port l, through its topfwall. --After:thevertical trip ltlis passedatliethree wayvalve 33 is turned so'asto permit theaairin the'cylinder-Q lc which is under-prcssureto escape; sothat whenthe arm 2 of'barZV-is again engaged I by yanothe'r trip 15 the bracket 4 and-the elements connected thereto may be'made to again assume {the positions'shownin'dotted lines in Fig.3. The bar 2 anda'rm Q a-re held normally in operative position. by 1 means of a coil springlO6 having its'oppo site ends-lconnected, re'spectively to oneend wall of-the casing. and to the upper end-of I lever 100. c

Exhaust; air vescaping from the'air brake system does not pass phere. It enters' -a ton head 202 from which projects a piston directly to the atmos branclnpipe 200 and is' delivered into a cylinder-201 heneath'aspiss i p rod 203 to the upper endof which is cons nected an arm 7? which travels-with; the piston rod. Jl hfe cylinder wall isp'rovided i c with a pl-u-ral-itypfeseape passages :2'0 lar1 vi ranged to b'e uneoveredhyathe piston-head mea er 202 asj-it reaches its v upp'erlimit, thus per mitting escapeof the exhaust. A are or, rope 8 is c nnected-come lower end offthis arm, passed over a pulley9 andsecured' to one arm of an elbow lever 1'0" which is pivoted o htiirotu'elever 1 1".

somewhat simpler construction "is shownin' Fi 12. Here tlie' ri 12 has been formed 8 i z: o P a one I arm of which as a bell crank-- leveryto the cord 8 is attached,completely eliminat ing the elbowlever 10. Thus, thetsupply of steam will be automatically cutoff", in case the engineer'hasbeen incapacitated;

In order to shield arm 2 oftlie plate 2 and plate 1% of bracket a and'prevent engagement of the same by any obstruction along the track, andto prevent'entrance of snow to thGiHtQI'iOILO-ftlle casing, by Way of the slot and opening through whichthese parts operate, shields have been'provided. These shields are both the same and therefore but one need be described." Each'shield comprises a side plate 40 arranged at an angle to the side of the casing and eXtend-,

ing downwardly and outwardly from a point near the top of the casing to a point just below the bottom of the casing. The upper edge is hinged to the casing in any suitable manner and a spring 41 acts to force the plate, normally, inward toward the adjacent casing wall. The triangular space between each inclined edge of the plate 40 and the casing wall is closed by a vertical triangular wall 41-2. The bottom is closed by a triangular plate a3 having two oppositely inclined beveled or cam edges 44 and 45 each leaving a small triangular gap between its edge and the side of the casing. This gap at its widest point, is just suflicient to receive the upper end of one of the trips 15 or 16 which, as the train travels forward, engages the cam edge and forces the shield outwardly until it engages and actuates the plate 14 or the arm 2. The shield then snaps shut again, the bottom 43 extending beneath the bottom of the casing. The cap 105, previously mentioned, keeps the slot of the bolt 104 closed weather proof.

It is thought that the construction, operation, and use of the invention Will be clear from the preceding detailed description.

Changes may be made in the construction, arrangement, and disposition of the several parts of the invention without in any Way The other arm of the elbow lever is bent at an angle grip l2 ofthe spring which cooperates with the departing from thefield andscope of the same, and it is meant to include an such within this application wherein onlya preferred form I has been disclosed,

Having thus fully described my inven cure by" Letters Patent is:

1. In a device of the character described,

a casing, a compressed air said casing, a valve in the pipe connected to the compressed air pipe, a valve therein, means for openingt'he valve in the compressed air pipe, means for open ing the valve in the branch pipe, and means pipe partly in for preventing the opening of the valve in the compressed air pipe. p

f 2; Ina device' of the character described, acasin'g, a compressed air pipe partly con tained therein, a valve in thesaid pipe and in the casing, a pivotally mounted lever connected thereto, a transverse lever pivotally connected to the lower end of the first men: tioned lever, a pivot-ally mounted lever having an armprojecting'froin the casing and being adapted to limit and control the motion'of the transverse lever, a branch pipe connected to the compressed air pipe, a valve pipe, a branch tion, what'I claim as new and desire tose} therein and operated by the outerend of the transverse lever, a trip, adaptedto engage the projectingarm of the second mentioned pivotally mounted lever soas to force the transverse-lever downwardly for signaling purposes, a plate secured to the transverse lever and projecting through the outer side ofthje casing, a trip adapted to engage the plate and force the lever back so as to open the valve in the compressed air pipe, means For holding the transverse lever in operative position, compressed air means for lifting the transverse lever out of operative position, and means for permitting the transverse lever to be again placed in operative position.

3. In a device of the character described, a casing, a compressed air pipe partly contained therein, a valve in the said pipe, a branch pipe connected to the compressed air pipe above the valve, a valve in the branch pipe, lever and trip means for opening the valve in the branch pipe, lever and trip means for opening the valve in the compressed air pipe, and means for preventing the opening of the valve in the compressed air pipe, comprising, a cylinder contained in the casing, a piston operative therein, a pipe connected to a source of compressed air supply and to the bottom of the cylinder, a yoke mounted on the upper end of the piston, a chain connecting one side of the yoke to the valve in the branch pipe, a spring connection between the outer side of the yoke and the bottom of the casing, means for admitting compressed air to the pipe connected to the bottom of the cylinder, and means Y a i 1,149,251

I mounted on the upper e'ndof' the piston rod,

a compressed air, pipe connectedto' the bottom of the cylinder and connected to a suitablesource of supply, athree Way valvein terposed in the pipe, means for permitting the exhaust of atmospheric airfrom the cylinder as the piston is forced upward, andv spring means for lowering the piston as the compressed air is permitted to escape from the cylinder. I a

5. In a device of the character described,

a casing, a compressed air pipe partly 1n said casing, a valve in the pipe, a branch pipe connected to thecompressed air pipe, a valve therein, 'means for opening the valve in the compressed air pipe, means for opening the Valve in :the branch pipe, means for preventing the opening of the valve, in the compressed air pipe, a casing containing all said mechanism, a trip adapted to actuate said mechanism, and a shield movably connected to said casing and adapted to be engagedand actuated by said trip. V

6. In a device of the character described, a casing, a compressed air' pipe partly in said casing, a valve in the pipe, a branch pipe connected to the compressed air pipe,

a valve therein, means for opening the valve in the compressed air p 1pe, means for openmg the valve in the branch pipe, means for preventing the opening of thevalve in the compressed air pipe, a casing containing all said mechanism, a trip adaptedto actuate said mechanism, a shield movably connected a to sa1d casmg, and a scam plate carried by said shield and adapted'to'be engagedb said trip to actuatesaid shield.

7. In a device of the character described,

a casing,- a compressed 'air pipe partly in. said casing, a'valve in the pipe, a branch pipe connected to the-compressed air pipe, a valve therein, means tor opening the valve in the compressed air pipe, means for opening the valve in the branch pipe, means for preventingtheopening of the valve in the compressed air pipe, a casing containing all a said mechanism, a trip adapted to actuate said mechanism, a shield movably connected to said casing, a cam platecarried by said shield andadapted to be engaged by said trip to actuate said shield, and means for normally maintaining said shield in operative position. I .7 I

In Witness whereof I have hereunto set my hand in the presence of two Witnesses,

JOSEPH ,ALPHONSE DEMERS.

'Witnesses: I JEAN Gossnmn,

GEO. VIDAL.

copies oi t his patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. 0. 

